FU Orionis Systems in the Infrared

Details FU Orionis Systems in the Infrared FU Orionis Systems in the Infrared

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..324..214p&link_type=abstract

Debris Disks and the Formation of Planets: A Symposium in Memory of Fred Gillett, ASP Conference Series, Vol. 324, Proceedings o

Astronomy and Astrophysics

Astronomy

Scientific paper

FU Orionis stars are a small group of pre-main sequence stars which exhibit multiwavelength phenomena suggestive of active accretion from a circumstellar disk. We present mid-IR imaging of the FU Ori systems RNO 1B/C, Z CMa, Par 21, and V380 Ori (a ``pre-FU Ori'' system) and mid-IR spectroscopy of V380 Ori and Z CMa. We show photometry and mid-IR color temperatures for all sources as well as near-mid-IR SEDs. We resolve multiple sources and extended emission in the RNO 1B/C system. We discuss the properties of these sources, association with disk activity, and identify the origin of the IRAS far-IR and water maser emission with a heavily embedded source in this field.

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